80042480

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2917}}^1$

素因数の和:2951

約数の個数: 80

約数和(自身を含む): 217099200

約数和(自身を除く): 137056720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 2917, 3430, 3920, 5488, 5834, 6860, 11668, 13720, 14585, 20419, 23336, 27440, 29170, 40838, 46672, 58340, 81676, 102095, 116680, 142933, 163352, 204190, 233360, 285866, 326704, 408380, 571732, 714665, 816760, 1000531, 1143464, 1429330, 1633520, 2001062, 2286928, 2858660, 4002124, 5002655, 5717320, 8004248, 10005310, 11434640, 16008496, 20010620, 40021240, 80042480]

約数ペア:

[(1, 80042480), (2, 40021240), (4, 20010620), (5, 16008496), (7, 11434640), (8, 10005310), (10, 8004248), (14, 5717320), (16, 5002655), (20, 4002124), (28, 2858660), (35, 2286928), (40, 2001062), (49, 1633520), (56, 1429330), (70, 1143464), (80, 1000531), (98, 816760), (112, 714665), (140, 571732), (196, 408380), (245, 326704), (280, 285866), (343, 233360), (392, 204190), (490, 163352), (560, 142933), (686, 116680), (784, 102095), (980, 81676), (1372, 58340), (1715, 46672), (1960, 40838), (2744, 29170), (2917, 27440), (3430, 23336), (3920, 20419), (5488, 14585), (5834, 13720), (6860, 11668)]